Detailed answer

Facial eczema is a condition characterized by inflammation and hypersensitivity of the skin. Nanoparticles in facial sunscreens are small enough to potentially penetrate the skin barrier and trigger irritation or allergic reactions in individuals with sensitive skin, such as those with facial eczema. Therefore, it is advisable to choose sunscreens without nanoparticles to minimize the risk of aggravating your eczema. Look for mineral-based sunscreens that contain zinc oxide or titanium dioxide, as these ingredients are effective in providing broad-spectrum protection without the use of nanoparticles. Additionally, patch testing a small area of your skin before applying any new sunscreen can help determine if you have any adverse reactions. Consulting with a dermatologist can also provide personalized recommendations based on the severity of your eczema and specific sensitivities.